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Thursday, March 2, 2023

on video Arduino NANO Propeller LED Analog Clock


 USB LED Light Fan Analog Clock Using Arduino NANO – Project Code & Circuit Diagram with Time Setting Feature

If you have watched the video of the famous gadget of Mini USB LED light Fan clock, get ready as we will design the same LED light analog clock based on Arduino NANO, hall sensor, resistors, battery, DC motor and LEDs.


The LEDs will rotate in circular motion and show an analog clock in propeller display with all the three hands for hour, minute and second respectively as well as the rounded (circular) shape like an ordinary wrist or wall clock.


The best thing in this project is that you can change the time setting for both minutes and seconds via uploading the source code to the Arduino NANO via USB cable. Let’s see how to do it.

Wiring & Circuit Diagram

Following the is the given circuit diagram for USB propeller LED fan analog clock. If you want to make the same project with a time setting feature, check the second circuit diagram given in the bottom of this post.

Cut a small piece of PCB board according to the circuit.

Insert a Green LED into the holes with the long leg on the left side. Now from the copper side, bend its legs to one side (Green LED’s i.e. LED 12 – LED 16 via R12 to R16 and A5 to A1 respectively).

The same way, insert the remaining Red LED’s (LED 1 – LED 11 via R1 to R11 and D2 to D12 respectively).

Insert the Blue Led above the green led as shown in fig (Blue LED 17 via R17 and A7). Connect R17 as 2.2kΩ and join the cathode of this LED to the cathode of other LED’s. Now, connect the positive leg of this Led to one end of the resistor R17 and the other end to the Arduino +5V pin.

All the cathode connections of the LED’s are joined together. Cut off the excess leads if needed.

Now insert the resistors and bend its leads the same as you did for LED’s. Cut the extra leads accordingly.

Now solder the components according to the circuit diagram.

Now, solder connectors to the Arduino NANO.

Connect a wire from LEDs common cathode to the Arduino GND pin.

As a final touch:


Connect the 3.7V, 240mAh battery according to the circuit and don’t forget to add a single pole toggle slide switch on the positive lead for ON and OFF operation of the circuit.

Now, Mount the whole project to a chipboard with the help of a toy DC motor. Keep in mind that if you use a powerful motor for high speed, you may use a 9V to 12V battery instead.

Finally, upload the project code (given below) viva USB cable and Switch ON the circuit. The fan will show the clock in LED light while in propeller motion.

Project Code

You can make the necessary changes to the following source code of USB Led fan clock and upload to the Arduino NANO through USB cable if needed.

Arduino Nano
PCB board (35mm x 150mm)
3mm LED x 8
220 ohm Resistor x 8
100 ohm Resistor x 1
10k ohm Resistor x 2
Optical sensor(H21A1)
Transistor BC337(NPN)
500mah LiPo Battery 3.7 volts (preferably a small battery size)
12volt Dc Motor
Macro USB Cable
Male Header (15 pins) x 4
Male Header (2pins) x 2
Soldering Iron
Solder
Jumper wire x 9
Standard Wire
Wire Strippers
Wire Cutters
Hot Glue Gun
Box/wood/Cardboard
Double female jumper cable


 USB LED Light Fan Analog Clock Using Arduino NANO – Project Code & Circuit Diagram with Time Setting Feature

If you have watched the video of the famous gadget of Mini USB LED light Fan clock, get ready as we will design the same LED light analog clock based on Arduino NANO, hall sensor, resistors, battery, DC motor and LEDs.


The LEDs will rotate in circular motion and show an analog clock in propeller display with all the three hands for hour, minute and second respectively as well as the rounded (circular) shape like an ordinary wrist or wall clock.


The best thing in this project is that you can change the time setting for both minutes and seconds via uploading the source code to the Arduino NANO via USB cable. Let’s see how to do it.

Wiring & Circuit Diagram

Following the is the given circuit diagram for USB propeller LED fan analog clock. If you want to make the same project with a time setting feature, check the second circuit diagram given in the bottom of this post.

Cut a small piece of PCB board according to the circuit.

Insert a Green LED into the holes with the long leg on the left side. Now from the copper side, bend its legs to one side (Green LED’s i.e. LED 12 – LED 16 via R12 to R16 and A5 to A1 respectively).

The same way, insert the remaining Red LED’s (LED 1 – LED 11 via R1 to R11 and D2 to D12 respectively).

Insert the Blue Led above the green led as shown in fig (Blue LED 17 via R17 and A7). Connect R17 as 2.2kΩ and join the cathode of this LED to the cathode of other LED’s. Now, connect the positive leg of this Led to one end of the resistor R17 and the other end to the Arduino +5V pin.

All the cathode connections of the LED’s are joined together. Cut off the excess leads if needed.

Now insert the resistors and bend its leads the same as you did for LED’s. Cut the extra leads accordingly.

Now solder the components according to the circuit diagram.

Now, solder connectors to the Arduino NANO.

Connect a wire from LEDs common cathode to the Arduino GND pin.

As a final touch:


Connect the 3.7V, 240mAh battery according to the circuit and don’t forget to add a single pole toggle slide switch on the positive lead for ON and OFF operation of the circuit.

Now, Mount the whole project to a chipboard with the help of a toy DC motor. Keep in mind that if you use a powerful motor for high speed, you may use a 9V to 12V battery instead.

Finally, upload the project code (given below) viva USB cable and Switch ON the circuit. The fan will show the clock in LED light while in propeller motion.

Project Code

You can make the necessary changes to the following source code of USB Led fan clock and upload to the Arduino NANO through USB cable if needed.

Arduino Nano
PCB board (35mm x 150mm)
3mm LED x 8
220 ohm Resistor x 8
100 ohm Resistor x 1
10k ohm Resistor x 2
Optical sensor(H21A1)
Transistor BC337(NPN)
500mah LiPo Battery 3.7 volts (preferably a small battery size)
12volt Dc Motor
Macro USB Cable
Male Header (15 pins) x 4
Male Header (2pins) x 2
Soldering Iron
Solder
Jumper wire x 9
Standard Wire
Wire Strippers
Wire Cutters
Hot Glue Gun
Box/wood/Cardboard
Double female jumper cable

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